baber/WOPTO huggingface dataset:
Patent GB-1058649-A (GB)
Title: Improvements in semi-automatic machines for chill casting hollow parts
IPC: B22D15/02
Filed: 1964-04-02
Abstract: 1,058,649. Casting - machines. REGIE NATIONALE DES USINES RENAULT. April 2, 1964 [April 5, 1963], No. 13748/64. Heading B3F. [Also in Division B5]  A semi-automatic casting-machine forcasting hollow parts such as automobile pistons, is of the type having a collapsible core and comprises a split casting block 3, the two halves of which are movable horizontally by means of actuators 35, to open and close the die. A double-acting central actuator 36 controls the raising and lowering of a key 18 with its support 19 and the means controlling the mutual closing motion of the core elements 8. With the dies closed and ready for casting locking toes 14 on the machine frame engage flanges 15 of the core bearing device 13. The key 18 is fully raised and inserted between the core elements 8 which are therefore expanded and rollers 22 on the push-rods 21 are retracted from the core members by a toothed means 23, 24, associated with bell-crank levers 28. At the completion of the casting operation the key IS and support 19 are withdrawn by the central actuator 36, but the core elements remain in expanded relationship under spring means (not. shown). On reaching the end of its movement the key support 19 exerts pressure through its vertical pegs 20 on abutments 30 of a draw-link 29 which causes the draw-link to move downward and thereby pivot the bell-crank levers 27 which actuate push-rods 21 to close the core elements and free them from their matching cavities 9 in the casting. The actuators 35 are then operated to open the two parts of the die block 3 and cap 1 to release the coreboaring device 13 and subsequently free the cast component. 37. The dies are then closed and the actuators operated ready for the next casting operation. Means are provided in the machine for manual spreading of the core elements (Figs. 6 and 7, not shown), and for means associated with the manual spreading means for positioning distance pieces in the mould for casting within the cast component. The actuation of the various parts of the machine is effected by means of electromagnetic slide valves, selector and limit switches, and push-button operated timers all of known type. A number of the machines described may be mounted on a turret base and adapted to receive molten material. either metal or synthetic; plastics, from an automatic plantof known type.
Patent GB-1218933-A (GB)
Title: Heat-developable diazotype copying paper
Inventor: IWAOKA TAKEHIKI
IPC: G03C1/60
Filed: 1968-03-21
Abstract: 1,218,933. Photographic diazotype materials. RICOH K.K. March 21, 1968, No. 13773/68. Heading G2C. A heat-developable diazotype material comprises a support coated on one surface with a mixture containing a diazonium compound, a coupler, an acid stabilizer, a heat-sensitive salt which generates alkali on heating which is selected from the sodium, potassium, ammonium, alkylamine (with 1-4 C atoms), guanidine or guanidine derivative salt of a halogenated acetic acid, a metal sulphate and thiourea or a derivative thereof of formula: wherein R and R<SP>1</SP> are hydrogen, alkyl or alkenyl with 1 to 3 carbon atoms, hydroxyalkyl, acyl, phenyl, or benzoyl. The heat-sensitive salt is preferably sodium chloro-acetate and the metal sulphate is preferably magnesium, nickel or zinc sulphate. In the examples, an aqueous solution of the components is applied to a paper support, imagewise exposed and developed by heating to give a dye image.
Patent GB-142683-A (GB)
Title: Improvements appertaining to feed mechanism for lathes and like machine tools
IPC: B23Q5/34
Filed: 1919-05-31
Abstract: 142,683. Smith, A. May 31, 1919. Gauging-devices.- The feed-screw of a lathe or other machine tool has the bearing d extended at e to carry a series of stop-washers k separated by spacing-washers m splined to the extension. After adjustment, all the washers are frictionally locked between nuts p, q. A sleeve f attached to the feed-screw or a connected part extends over the washers and is provided with a series of holes, corresponding to the stop-washers, to receive a pin g held in position by a spring clip h. An indicator t is provided to assist in setting the stop. Sets of washers k, m may be permanently connected for use in repetition work.
Patent GB-1499325-A (GB)
Title: Pump assembly for an atomizing piston pump
IPC: F04B9/14
Filed: 1974-03-28
Abstract: 1499325 Reciprocating pumps BESPAK INDUSTRIES Ltd 29 March 1975 [28 March 1974 23 July 1974] 13789/74 and 32462/74 Heading F1A A container-mounted atomizer pump comprises two coaxial cylinders 15, 16 of different effective cross-sectional areas and respective bucket pistons 22, 50 defining between them a pumping chamber, depression of an actuator button 28 moving piston 22 downwardly and the pressure developed in the pumping chamber moving piston 50 downwardly against spring 59, the stroke of piston 50 being greater than that of piston 22 due to the smaller effective cross-sectional area of piston 50 which slides on a fixed projection 14 in cylinder 16. Valve 35 in piston 22 has a stem 37 which engages projection 14 during the downward stroke to open valve 35, discharge then taking place from the pumping chamber via valve 35 and nozzle 30, piston 50 being moved upwardly by spring 59. On release of button 28, valve 35 remains open during initial upward movement of pistons 22, 50 by spring 59, causing liquid in nozzle 30 to be sucked back into the pumping chamber. Valve 35 closes when stem 37 moves away from projection 14, and liquid is then drawn from the container via dip tube 18, ports 19 and the lip 51 of piston 50. The container is vented via port 13. In Fig. 2 (not shown), the upper piston (122) has a valve-member (137) on a stem (135) with transverse fingers (148, 149) which, during downward movement of the piston (122) engage a step (161) between coaxial cylinders of different diameters housing the upper and lower pistons, thereby opening the valve for discharge to take place. The lower, spring-loaded piston (150) has a through passage controlled by a valve (153).
Patent GB-352146-A (GB)
Title: Improvements in and relating to the closuring of jars and similar vessels
IPC: B65D55/08
Filed: 1930-05-06
Abstract: 352,146. Jar &c. closures. HELBERG, 0., 5, Plan, Hamburg, Germany. May 6, 1930, No. 13943. [Class 125 (iii).] A closure for jars &c., of the type in which a retaining ring a, which can be readily torn off, is folded in U-shape about flat flanges provided on the vessel and its cover, is characterized by the retaining ring being formed from an uninterrupted piece of metal of cylindrical form fitting the cover d, which is of dished form, the inner diameter of the ring corresponding to the outer diameters of the flanges of the vessel and cover, e<1>, d<1>. Tearing pieces b, c, formed integrally with the retaining ring, are provided which are folded to lie in the hollow of the lid.
Patent GB-670514-A (GB)
Title: Improvements in or relating to a process of preparing new spiro barbituric acid compounds and the spiro barbituric acid compounds resulting from such process
Filed: 1949-05-25
Abstract: Spiro-barbituric acids and salts of formula <FORM:0670514/IV (b)/1> in which R is hydrogen or methyl and R1 and R2 are methyl or ethyl, but R is hydrogen when both R1 and R2 are ethyl and R is methyl when both R1 and R2 are methyl, and X is hydrogen or a metal, are prepared by condensing a 1 : 1 - dicarbethoxycyclopentane with urea to give the barbituric acid directly or with guanidine to give an iminobarbituric acid which is then hydrolysed, the barbituric acid being, if desired, treated with a base to give the metal salt.  In the examples: (1) 3-methylacetonylacetone is reduced to 3-methyl-2:5-hexanediol, which is treated with hydrogen bromide to give 3-methyl-2:5-dibromohexane, which is condensed with ethyl malonate to give 1 : 1-dicarbethoxy-2 : 3 : 5-trimethylcyclopentane, condensation of which with guanidine affords spiro - [2 : 3 : 5 - trimethylcyclopentane - 1 : 51-(21 - imino) barbituric acid], which is hydrolysed to spiro-[2 : 3 : 5 - trimethylcyclopentane - 1 :51-barbituric acid], the sodium salt of the latter is formed (2); (3) a -allyldiethyl ketone is reduced (aluminium isopropoxide) to 4-methyl-1-heptene-5-ol, from which is prepared 4-methyl-2 : 5-dibromoheptane, which is condensed with ethyl malonate as above, the product treated with guanidine, and the iminobarbituric acid hydrolysed to spiro-(2-ethyl-3 : 5-dimethylcyclopentane-1 : 51-barbituric acid), the sodium salt of which is prepared (4); (5) 1-methylallylacetonitrile (from 1-methylallyl chloride and acetonitrile) is treated with ethyl magnesium bromide to give 5-methyl-6-heptene-3-one, which is reduced to the alcohol, the latter treated with hydrogen bromide to give 2 : 5-dibromo-3-methylheptane, which is converted to the cyclopentane - 1 : 1 - dicarboxylic ester and reacted with urea to give spiro-(2 : 3-dimethyl-5-ethylcyclopentane-1 : 51-barbituric acid); (6,7) propionaldehyde is treated with acetylene dimagnesium bromide to give 4-octyne-3 : 6-diol, which is reduced to octane-3 : 6-diol and converted to 3 : 6-dibromo-octane, the latter being converted to the barbituric acid as in the last example; (8) acetonitrile is condensed with allyl bromide to give allylacetonitrile, which is treated with ethyl magnesium bromide to give 1-heptene-5-one, which is reduced to 1-heptene-5-ol, converted to 2 : 5-dibromoheptane, which is converted to the barbituric acid as in example (5).
Patent GB-602746-A (GB)
Title: Improvements in oil and like seals
IPC: F16J15/32
Filed: 1945-06-04
Abstract: 602,746. Oil seals. TRIST & CO., Ltd., R., and BOMYER, L. June 4, 1945, No. 14057. [Class 122 (v)] An oil seal comprises a rubber sealing ring 2, a rubber backing ring 4 of greater resilience, deformed when the seal is applied to the shaft 5, and a rigid dished ring 9 to pre-deform the sealing ring. In an alternative construction the ring 9 is omitted. As shown in Fig. 3 the backing ring 4 is originally flat and there may be one on each side of the sealing ring 2. The seal may be double comprising two sealing rings extending away from one another and two backing rings, with or without two deforming rigid rings. Specification 602,792 is referred to.
Patent GB-206879-A (GB)
Title: Improved method of and means for pulverising coal and other materials
IPC: B02C13/14
Filed: 1922-05-18
Abstract: 206,879. Duffield, F. L. May 18, 1922. Impact pulverizers.-In disintegrating or pulverizing coal &c., the material is introduced into a chamber or casing at the bottom thereof, subjected therein to repeated. impacts in zones of increasing area by rotary elements, and caused to move upwards through such zones and strike against stationary elements, all under the combined influence of centrifugal force, gravity, and suction whereby the material rises, circulates, and falls until finally drawn off in powdered form at the top of the chamber. As shown, the coal is fed from a hopper k through an opening b at the base of an inverted conical casing a in which rotates a vertical shaft c mounted in ball bearings c<1> and carrying arms or beaters d secured to carriers e. Stationary beaters f fixed to the casing are formed with openings g through which air is drawn by a fan h at the top of the casing, the ports g opening into the casing in the direction of the rotation of the beaters d. The beaters d are preferably arranged in staggered relationship and may be formed with canted faces, and the stationary beaters f with similar faces but sloping in the opposite direction. A motor j drives the shaft c, and secondary air is admitted near the top of the casing by a valve m. The pulverized material is withdrawn by the fan h and forced through a pipe i to the furnace &c. One of the Provisional Specifications describes apparatus in which the material is fed in at the top of a conical casing containing a rotary shaft carrying beaters of triangular section and having pockets, the pulverized material being forced upwards and out through a pipe by the air current set up by the rotary beaters.
Patent GB-712978-A (GB)
Title: Improvements in and relating to apparatus for conveying materials and articles
IPC: B65G27/00
Filed: 1950-06-06
Abstract: 712,978. Sieves with compound motion GENERAL ELECTRIC CO., Ltd. and SHERWEN. J. W. June 6, 1951 [June 6, 1950], No. 14102/50. Class 117 [Also in Group XXX]  A sieve in the form of an annular trough 40, a part 41 of which consists of wire mesh is supported by a rigid dished plate 42 carried by leaf springs 44 mounted on a base plate 45 and is vibrated by an electromagnetic vibrator (not shown), mounted between the parts 42, 45. The mesh of the part 41 may increase in size along its length. The parts are so arranged that the trough moves along the vertical axis passing through its centre and rotates about that axis simultaneously when the vibrator is energized.
Patent GB-773399-A (GB)
Title: Tractor mounted drill planter
IPC: A01C7/20
Filed: 1955-05-16
Abstract: 773,399. Seed sowing machines. ALLISCHALMERS MANUFACTURING CO. May 16, 1955 [June 11, 1954], No. 14113/55. Class 6(1). A tractor mounted seed sower is provided with chains 31 which prevent downward movement of the machine beyond a predetermined up and down adjustable limit position and are connected to a shaft 8 of power lifting arms 6 for lowering the machine into and raising it from the limit position. As shown the chains 31 are each connected to a bolt 38 which is adjustably engaged in a sleeve 39 to which is connected a hook 41 which engages over the shaft 8. The lower ends of the chains are connected to pins 34 mounted in brackets 33 fixed to the machine frame. the pins 33 also supporting links 42 connected to the lifting arms 6, the arms 6 being moved by hydraulic rams 9. The links 42 are connected by a bar 51 to prevent excessive side play of the implement. The frame of the machine is provided with an eye 30 which engages a hook 29 mounted in a bell housing 28 on the tractor. A hopper 26 is provided with seed dispensing means driven from the tractor by means of a belt or chain 53. Seed and fertilizer are conveyed from the hopper 26 by collapsible tubes 56 inserted into boots 57 forming part of the furrow opening devices 27 which are each mounted on a bar 61 pivotally connected to two co-axial shafts 58 which are supported by members 67 from the machine frame. Downward movement of each device 27 is limited by an adjustable chain 76 and each device is pressed into contact with the ground by means of a spring 80 encircling the shaft 58, one end of the spring engaging a pin on the shaft while the other end is bent into a loop 81 which engages on the bar 61. The shafts 58 are rotatably adjusted by means of a hand operated crank 86 which engages a block 85 pivoted on arms 71 each arm being secured to one of the shafts 58. Each furrow opening device 27 includes a disc 63 rotatably mounted on an axle 62. Specification 773,400 is referred to.
Patent GB-1498865-A (GB)
Title: Duct
IPC: F16L59/18
Filed: 1975-04-07
Abstract: 1498865 Pipe couplings AIR-O-MULDER BV 7 April 1975 [8 April 1974] 14230/75 Heading F2G A duct comprises double-layer duct sections 1, 7 and 11, 7<SP>1</SP> connected end-to-end by a coupling member 2 having three parallel flanges 4, 5, 6 connected by, and extending on both sides of, a web 3, the layers 1, 1<SP>1</SP> and 7, 7<SP>1</SP> of the duct sections being located between respective pairs of flanges 4, 5 and 5, 6. The flanges are of different widths, the widest on the inside and the narrowest on the outside, to facilitate assembly. A securing device comprising a spring strip 8 with obliquely protruding teeth 9 may be placed between a layer 1<SP>1</SP> and a flange 5, and becomes wedged on moving the layer 1<SP>1</SP> in the direction P. The inner layers 7, 7<SP>1</SP> may be of sound or heat insulating material, e.g. glass wool.
Patent GB-795024-A (GB)
Title: Improvements in method and apparatus for twist detection and detwister control
Inventor: DEAN WALTER EDWARD
IPC: D06B23/08
Filed: 1956-05-08
Abstract: 795,024. Finishing fabric. ROBERTSON, J. D. May 8, 1956, No. 14302/56. Class 42 (1). [Also in Group XXXV] In a system for automatically removing twist from a travelling rope of sheet material, the rope passes between and engages parallel members before being opened out into sheet form, the effect of the opening being, if the rope is twisted, to move the parallel members in opposite directions to initiate removal of the twist. As shown in Fig. 3, a rope of cloth R from a detwister (not shown) after bleaching, washing or transporting passes over a pulleywheel 14 freely rotatable on a ceiling mounted bracket 10b. The cloth is guided towards the pulley through a pot-eye 16 carried by a bracket 18 which is adjustable relative to bracket 10b by inserting a pin through one of a series of holes 19 in bracket 18 and through a hole 22 in bracket 10b. After leaving the pulley the cloth passes between a pair of spring-loaded vertical rolls 30 and then through a pair of horizontal detector rolls 32, 34. The weight of roll 34 is partially balanced by a spring 82 so that rolls 32, 34 only maintain light pressure on the cloth. Both sets of rolls are carried by a bracket 20 which is adjustable relative to bracket 10b by also inserting the previously-mentioned pin through one of a series of holes 21 in bracket 20. Rolls 30 flatten and deliver the cloth rope on edge to rolls 32, 34 which have annular grooves and are free to move to a limited extent in an axial direction. After leaving rolls 32, 34 mechanism (not shown) pulls the opposite edges of the cloth to open it out into sheet form and, in consequence if there is more than a predetermined twist in the rope axial movement of rolls 32, 34 in opposite directions operates contacts 91 and 97, Fig. 7, or contacts 89 and 99, according to the sense of twist so that a detwister 104 is operated in the appropriate direction to remove the twist.
Patent GB-999980-A (GB)
Title: Hand-knitting machine
IPC: D04B39/00
Filed: 1962-04-13
Abstract: 999,980. Knitting machines. ART AMIKI KABUSHIKI KAISHU. April 13, 1962 [April 13, 1961], No. 14403/62. Heading D1C. A hand knitting machine comprises a series of parallel knitting needles N 1 , N 2  mounted in the machine body so that they can be raised or lowered, a transverse design selecting device 7, 8, 9 beneath the needles, means 5 for raising each needle out of engagement with the device 7, 8, 9 and a cam carriage 12 with knitting cams and a needle selecting device which depresses needles positioned over cam free parts of device 7, 8, 9. As shown, knitting needles N 1 , N 2  extend through front and back walls 2, 3 of a plate 1 and are biased upwardly by springs 5, their butts b projecting through slots 6 in plate 1. Design plates 7, 8, 9, have cam members 7<SP>1</SP>, 8<SP>1</SP>, 9<SP>1</SP> respectively arranged singly and three needles apart, in pairs and two needles apart and singly and two needles apart. The cam members are normally positioned between the needles, the plates having slots mounted on bolts so as to be adjustable, for needle selection to form a pattern. The carriage 12 comprises raising cams 13 on which are pivoted cams 18 which control passage 17, a lowering cam 15 forming a passage 14 controlled by pivoted cams 16 and a tuck cam 19 which raises needles in passage 17 to tuck level. Cams 20 pivoted at either end of the carriage each carry pivoted spring biased needle selecting cams 22 which engage the butts of needles and if these are above cam free parts of the device 7, 8, 9 forces them down and into groove 21 under cam 20 through which they gradually rise and then pass through the knitting cycle. Needles above cams on plates 7, 8, 9 are engaged by cams 20 and deflected either into passage 14 or into the knitting path according to the position of cam 16. In a modification, Fig. 7, springs 31 are provided on the carriage to select the needles and springs 5 are mounted outside the machine body.
Patent GB-653351-A (GB)
Title: Improvements in or relating to the production of hydration products of 4-vinylcyclohexene dioxide
IPC: C07D303/14
Filed: 1948-05-28
Abstract: Hydroxy compounds of the formul  <FORM:0653351/IV (b)/1> are manufactured by reacting 4-vinylcyclohexene dioxide with water, preferably in the presence of an inorganic acid (e.g. nitric, sulphuric or perchloric acid), as catalyst.  The reaction may be carried out at 20-80 DEG  C., e.g. for 20-30 minutes at 75-80 DEG  C. The nature of the products depends on the pH of the reaction medium, one or both of the dihydroxy compounds being formed at about pH 4.0, the tetrahydroxy compound at about pH 2.5, and mixtures of di- and tetra-hydroxy compounds at intermediate values.  Detailed examples are given.  The products are useful as intermediates for further reactions, e.g. the tetrahydroxy compound forms a tetra-acetate by treatment with acetic anhydride. Specifications 648,456 and 651,797 are referred to.
Patent GB-1210015-A (GB)
Title: Pressure indicating apparatus for hydraulic mine roof support rams
IPC: F15B3/00
Filed: 1968-03-26
Abstract: 1,210,015. Pressure indicators. BERGWERKSVERBAND G.m.b.H. March 26, 1968 [June 1, 1967], No. 14444/68. Heading G1L. In apparatus for providing a pneumatic signal corresponding to the hydraulic pressure of a mine roof support ram the apparatus is connected by sockets 10, 11 to a hydraulic pit prop and, through a hole 8, with the hydraulic system of the pit prop and the arrangement is such that the hydraulic pressure acts on one side of a diaphragm 5 against a supply of compressed air at a constant pressure supplied through an opening 15 to a chamber 12, on the other face of diaphragm 5, and through a gap formed between the end of a tube 20 and out through the bore of the tube 20 and the amount is such that should the pressure on the first face of the diaphragm vary, the gap width will vary, to vary the pressure in chamber 72 which pressure will be shown on indicator 32.